Agència de Salut Pública de Barcelona, Barcelona, Spain.
Universitat Pompeu Fabra, Barcelona, Spain.
PLoS One. 2023 Feb 3;18(2):e0280614. doi: 10.1371/journal.pone.0280614. eCollection 2023.
An outbreak of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) occurred in young people from Catalonia (Spain) who travelled to Menorca (Spain) in summer 2021. This outbreak appeared when governments relaxed Covid-19 preventive measures: the mask usage and the opening of nightlife. It was related to a super-disseminating mass event: Sant Joan festivities in Ciutadella. The aim of this article is to describe an outbreak of COVID-19 in young people aged 17-19 years from Catalonia travelling to Menorca.
This is an observational study of a COVID-19 outbreak. The study population comprised Catalonian youth aged 17-19 years who travelled to Menorca from 15 June to 10 July. Epidemiological descriptive indicators were obtained. Descriptive and geographical statistics were carried out. Bivariate Moran's I test was used to identify spatial autocorrelation between the place of residence and deprivation. The outbreak control method was based on identifying and stopping chains of transmission by implementing the test-trace-isolate-quarantine (TTIQ) strategy.
We identified 515 confirmed cases infected in Menorca, 296 (57.5%) in girls and 219 (42.5%) in boys, with a total of 2,280 close contacts. Of them, 245 (10.7%) were confirmed as cases. The cases were diagnosed between 15 June and 10 July. None of the persons with confirmed infection died or required hospitalisation. The attack rate was 27.2%. There was an inverse relationship between deprivation and number of confirmed cases (p<0.005), there were clusters of confirmed cases in the most socioeconomic favoured areas.
The outbreak is related with young people from socioeconomic favoured areas who travelled to Menorca in summer 2021. Failure to comply with preventive measures in binge-drinking events and during holidays may have favoured SARS-CoV-2 transmission. The interauthority coordination and establishment of a clear line of leadership allowed continuous communication between institutions, which were key to managing this complex COVID-19 outbreak.
2021 年夏天，来自加泰罗尼亚（西班牙）的年轻人前往梅诺卡岛（西班牙）时，出现了严重急性呼吸综合征冠状病毒 2（SARS-CoV-2）的爆发。此次爆发发生在各国政府放宽新冠病毒预防措施之时：戴口罩和开放夜生活。这与一个超级传播的大型活动有关：在 Ciutadella 的圣约翰节。本文旨在描述来自加泰罗尼亚的 17-19 岁年轻人前往梅诺卡岛时 COVID-19 的爆发情况。
这是一项对 COVID-19 爆发的观察性研究。研究人群包括 2021 年 6 月 15 日至 7 月 10 日期间从加泰罗尼亚前往梅诺卡岛的 17-19 岁的加泰罗尼亚青年。获得了流行病学描述性指标。进行了描述性和地理统计学分析。使用双变量 Moran's I 检验来识别居住地和贫困之间的空间自相关。爆发控制方法基于通过实施测试-追踪-隔离-检疫（TTIQ）策略来识别和停止传播链。
我们在梅诺卡岛发现了 515 例确诊病例，其中 296 例（57.5%）为女性，219 例（42.5%）为男性，共有 2280 名密切接触者。其中，245 例（10.7%）被确认为病例。病例诊断于 6 月 15 日至 7 月 10 日之间。没有确诊感染的人死亡或需要住院治疗。发病率为 27.2%。贫困程度与确诊病例数呈反比（p<0.005），在最具社会经济优势的地区存在确诊病例集群。
此次爆发与 2021 年夏天前往梅诺卡岛的来自社会经济优势地区的年轻人有关。在狂欢饮酒事件和度假期间未能遵守预防措施可能有利于 SARS-CoV-2 的传播。各当局之间的协调和明确的领导关系的建立允许机构之间进行持续的沟通，这是管理这一复杂的 COVID-19 爆发的关键。
